29 lines
325 B
C++
29 lines
325 B
C++
#include<iostream>
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#include<vector>
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using namespace std;
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int main(){
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int n;
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int count = 0;
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cin >> n;
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vector<int> list(n);
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for(int i = 0;i < n;i++){
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cin >> list[i];
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}
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for(int i = 0;i < n;i++){
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for(int j = i;j < n;j++){
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if(list[i]>list[j]){
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count++;
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}
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}
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}
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cout << count;
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return 0;
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}
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